Without doing any major paint jobs or anything you could accessorize with yellow or any of the terra cotta/coral/ peach spectrum. Plants either real or artificial make a kitchen look cozy. Depending on your own taste and mind set you could get away with the purple/ lavender/ aubergine shades. Anything will go with what you already have. And remember, it IS your kitchen so do as you please with it.

Any color goes well with neutrals of beige, brown and black. It really depends on the amount of sunlight the kitcehn receives. If its shaded, use yellow. Otherwise, I think I'd make the walls a light beige. Be sure to include some white in your color scheme to offset the blacks and browns.

Go to the paint store and look at all the photos they have on the paint swatches (houses with a variety of trims)See a combo you like in colors similar to yours...then pull the larger swatches and match the accent colors. Works for me every time and gives you the latest in updated looks